Basic bearing designation system

The designations of most SKF rolling bearings follow a designation system. The complete bearing designation may consist of a basic designation with or without one or more supplementary designations (diagram 1). The complete designation is always marked on the bearing package, whereas the marking on the bearing may be incomplete or deviate from the designation. The basic designation identifies:

the bearing type

the basic design

the boundary dimensions

Prefixes and suffixes identify bearing components or variants having a design and/or feature(s) that differ in some respect from the basic design.